A Clinical Trial of Dantrolene Sodium in Pediatric & Adult Patients With

Status Completed

Clinical Trial Summary

Wolfram syndrome is a rare genetic disorder characterized by juvenile-onset diabetes mellitus, diabetes insipidus, optic nerve atrophy, hearing loss, and neurodegeneration. The purpose of this study is to assess the safety and tolerability of dantrolene sodium in patients with Wolfram syndrome. In addition, we will assess the efficacy of dantrolene sodium on the cardinal manifestations of Wolfram syndrome, including visual acuity, remaining beta cell functions, and neurological functions. There is a screening period up to 56 days, a 6-month treatment period with an optional extension phase up to 24 months, and a 4-week safety follow-up period. Study assessments include medical & medication history, physical exams, neurological exams, eye exams, endocrine exams, vital signs, height, weight, electrocardiograms, blood and urine tests, pregnancy test if applicable, and questionnaires.

Clinical Trial Description

The Primary Objective of this study is: To assess the safety and tolerability of dantrolene sodium administered orally at upper end of therapeutic dose range for 6 months in patients with Wolfram syndrome with an optional extension phase up to 24 months. Patients who express the wish to continue in the optional extension phase on dantrolene sodium will be offered this possibility. The Secondary Objectives of this study are: - Determine the effect of dantrolene sodium on remaining beta cell functions using a mixed-meal tolerance test and monitoring base-line C-peptide levels, blood glucose levels, proinsulin/C-peptide ratios, hemoglobin A1c levels, and urine glucose levels. - To determine the efficacy of dantrolene sodium on visual acuity (LogMar scores) - To determine the efficacy of dantrolene sodium on visual functions using Visual Functioning Questionnaire - 25. - To evaluate the efficacy of dantrolene sodium on neurological functions using the Wolfram Unified Rating Scale (WURS) and standard neurological assessments. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02829268
Study type	Interventional
Source	Washington University School of Medicine
Contact
Status	Completed
Phase	Phase 1/Phase 2
Start date	January 2017
Completion date	February 2023

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

A Clinical Trial of Dantrolene Sodium in Pediatric and Adult Patients With Wolfram Syndrome

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms